package com.dingxin.portal.common.utils;

public class NumberTool {
	public static String getRandomNumber(int n) {
		String strReturn = "";
		if (n > 0) {
			for (int i = 0; i < n; i++) {
				strReturn += String.valueOf((int) (Math.random() * 10));
			}
		}
		return strReturn;
	}
}
